Rice grinding machine for manufacturing rice protein powder

Abstract

The invention discloses a rice grinding machine for manufacturing rice protein powder, and relates to the technical field of rice protein powder manufacturing, the rice grinding machine comprises a feeding mechanism, the feeding mechanism comprises a feeding box, a partition plate conveying belt is obliquely arranged in the feeding box, and a grinding mechanism is arranged at the discharging end of the partition plate conveying belt; and a grinding wheel is rotationally mounted in the grinding box. Through collaborative design of the screening mechanism and the feeding mechanism, automatic grading and directional conveying of raw materials are achieved, the screening mechanism adopts a connecting rod mechanism driven by a servo motor, the screening box swings in a reciprocating mode under supporting of the rolling wheels, impurities are effectively separated, and it is ensured that rice meeting the particle size requirement accurately falls into a discharging hopper. And meanwhile, under the driving of a motor, the obliquely arranged partition plate conveying belt is linked with a driving roller through a first driving belt to achieve stable conveying, it is ensured that the screened rice directly enters the grinding procedure, the low efficiency and pollution risks of traditional manual sorting are avoided, and the production continuity and efficiency are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of rice protein powder manufacturing, and specifically relates to a rice milling machine for manufacturing rice protein powder. Background Art

[0002] Rice protein powder is a plant protein source with high nutritional value and is widely used in the food, feed, and health product industries. During its production process, a rice milling machine is required to convert rice raw materials into high-purity and high-nutritional-value rice protein powder through physical grinding and separation technologies.

[0003] Before entering the rice milling machine, the raw rice is often not fully pretreated, resulting in the internal mixture of physical impurities such as rice husks, broken bran, sand, and metal debris. However, the existing rice milling machines do not have a screening function, resulting in the inability to effectively remove impurities in the rice before milling and making it difficult to meet the requirements for the purity and uniformity of raw materials in rice protein powder production.

[0004] Therefore, it is necessary to invent a rice milling machine for manufacturing rice protein powder to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a rice milling machine for manufacturing rice protein powder to solve the problem in the technology that there is no screening function, resulting in the inability to effectively remove impurities in the rice before milling and making it difficult to meet the requirements for the purity and uniformity of raw materials in rice protein powder production.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A rice milling machine for manufacturing rice protein powder, including a feeding mechanism. The feeding mechanism includes a feeding box, and an inclined partition conveyor belt is arranged inside the feeding box. A screening mechanism is arranged above the feeding mechanism. The screening mechanism includes a vertical frame. One side of the top of the vertical frame is provided with a screening box, and a screen is arranged inside the screening box. One end of the bottom of the vertical frame is provided with a servo motor, and the output end of the servo motor is connected with a small pulley. A large pulley is arranged above the small pulley, and a transmission belt two is tensioned on the small pulley and the large pulley. A feeding hopper is inclinedly arranged directly below the screen. The bottom of the screening box is in sliding contact with rollers and is installed on the top surface of the vertical frame. A connecting rod mechanism is arranged between the screening box and the large pulley. The connecting rod mechanism includes a rotating shaft, and the rotating shaft is connected with the large pulley. A connecting piece is arranged on one side wall of the screening box, and a connecting rod is hinged between the connecting piece and the rotating shaft. The feeding end of the partition conveyor belt is provided with a grinding mechanism. The grinding mechanism includes a grinding box, and a grinding wheel is rotatably installed inside the grinding box.

[0007] Furthermore, an electric motor is arranged outside the feed box, an output end of the electric motor is connected to a pulley 1, a pulley 2 is arranged obliquely below the pulley 1, and a transmission belt 1 is tensioned on the pulley 1 and the pulley 2.

[0008] Furthermore, the first pulley and the second pulley are both connected with driving rollers, and the partition conveyor belt is tensioned on the two driving rollers.

[0009] Furthermore, a feed port is provided on one side of the feeding mechanism, and the feed port is located directly above the loading end of the partition conveyor belt.

[0010] Furthermore, a disassembly and assembly mechanism is provided between the screen box and the screen, and the disassembly and assembly mechanism includes a slide block, and the slide block is installed on the side walls at both ends of the screen, and a matching slide groove is provided at the contact position between the inner wall of the screen box and the slide block.

[0011] Furthermore, handles are provided at both ends above the screen.

[0012] Furthermore, the grinding mechanism also includes a driving motor, the output end of the driving motor is connected to a pulley three, a pulley four is arranged above the pulley three, and a transmission belt four is tensioned between the pulley three and the pulley four.

[0013] Furthermore, one side of the transmission belt 4 is connected to a spur gear 1, one side of the spur gear 1 is meshingly connected to a spur gear 2, and the output ends of the spur gear 1 and the spur gear 2 are respectively connected to grinding wheels.

[0014] Furthermore, shaving plates are provided on the inner walls of both sides of the grinding box, a discharge hopper is provided at the bottom of the grinding box, and a switch valve is provided inside the discharge hopper.

[0015] In the above technical solution, the technical effects and advantages provided by the present invention are: 1. The present invention realizes the automatic grading and directional conveying of raw materials through the coordinated design of the screening mechanism and the feeding mechanism. The screening mechanism adopts a connecting rod mechanism driven by a servo motor, so that the screen box swings back and forth under the support of the roller, effectively separating impurities and ensuring that rice that meets the particle size requirements falls accurately into the lower hopper. At the same time, the inclined partition conveyor belt is driven by the motor to achieve stable conveying through a transmission belt and a linked transmission roller, ensuring that the screened rice directly enters the grinding process, avoiding the inefficiency and pollution risks of traditional manual sorting, and significantly improving production continuity and efficiency; 2. The present invention arranges the screen and the screening device to achieve quick disassembly and assembly through a slider and a slide groove. The operator only needs to install or disassemble the screen by horizontal pushing and pulling without the assistance of tools. This design shortens the traditional screen replacement time to minutes, greatly reducing the equipment downtime and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the sectional three-dimensional structure of the feeding mechanism of the present invention; Figure 3 is a schematic diagram of the three-dimensional structure of the screening mechanism of the present invention; Figure 4 is a schematic diagram of the three-dimensional structure of the connecting rod mechanism of the present invention; Figure 5 is an exploded three-dimensional structure diagram of the sieve box and the sieve mesh of the present invention; Figure 6 is of the present invention Figure 5 is an enlarged three-dimensional structure diagram of part A in the present invention; Figure 7 is a schematic diagram of the three-dimensional structure of the grinding mechanism of the present invention; Figure 8 is a schematic diagram of the sectional three-dimensional structure of the grinding box of the present invention.

[0018] Description of the reference numerals: 1. Feeding mechanism; 101. Feed box; 102. Partition conveyor belt; 1021. Motor; 1022. Pulley 1; 1023. Pulley 2; 1024. Transmission belt 1; 1025. Transmission roller; 103. Feed inlet; 2. Screening mechanism; 201. Vertical frame; 202. Sieve box; 203. Sieve mesh; 204. Servo motor; 205. Small pulley; 206. Large pulley; 207. Transmission belt 2; 208. Hopper; 209. Roller; 3. Connecting rod mechanism; 301. Rotating shaft; 302. Linking rod; 303. Connector; 4. Disassembly and assembly mechanism; 401. Slide block; 402. Slide groove; 403. Handle; 5. Grinding mechanism; 501. Driving motor; 502. Grinding box; 503. Pulley 3; 504. Pulley 4; 505. Transmission belt 4; 506. Spur gear 1; 507. Spur gear 2; 508. Grinding wheel; 509. Scraping plate; 5010. Discharge hopper. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention.

[0020] The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Thus, the detailed description of the embodiments of the present invention provided in the figures is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0021] All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of the present invention.

[0022] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the figures, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] The present invention provides as Figures 1-8A rice milling machine for manufacturing rice protein powder as shown includes a feeding mechanism 1. The feeding mechanism 1 includes a feeding box 101. A partition conveyor belt 102 is inclinedly arranged inside the feeding box 101. A screening mechanism 2 is arranged above the feeding mechanism 1. The screening mechanism 2 includes a vertical frame 201. A screening box 202 is arranged on one side of the top of the vertical frame 201. A sieve mesh 203 is arranged inside the screening box 202. One end of the bottom of the vertical frame 201 is provided with a servo motor 204. The output end of the servo motor 204 is connected with a small pulley 205. A large pulley 206 is arranged above the small pulley 205. A second transmission belt 207 is tensioned on the small pulley 205 and the large pulley 206. A blanking hopper 208 is inclinedly arranged directly below the sieve mesh 203. The bottom of the screening box 202 is in sliding contact with a roller 209 and is installed on the top surface of the vertical frame 201. A connecting rod mechanism 3 is arranged between the screening box 202 and the large pulley 206. The connecting rod mechanism 3 includes a rotating shaft 301. The rotating shaft 301 is connected with the large pulley 206. A connecting member 303 is arranged on one side wall of one end of the screening box 202. A linkage rod 302 is hinged between the connecting member 303 and the rotating shaft 301. The blanking end of the partition conveyor belt 102 is provided with a grinding mechanism 5. The grinding mechanism 5 includes a grinding box 502. A grinding wheel 508 is rotatably installed inside the grinding box 502.

[0025] In this embodiment, the servo motor 204 drives the small pulley 205 to drive the large pulley 206 to rotate through the second transmission belt 207. The reciprocating swing of the screening box 202 is converted through the connecting rod mechanism 3 to achieve efficient screening, ensuring that the rice raw materials directly enter the grinding link after classification. The roller 209 supports the bottom of the screening box 202, reducing friction and ensuring smooth swing. In this way, through the coordinated design of the sieve mesh 203 and the blanking hopper 208, accurate classification and efficient conveying of the raw materials are realized, reducing manual intervention and improving the production standardization degree. Thus, the screening mechanism 2 and the grinding mechanism 5 are linked through the feeding mechanism 1 to achieve seamless connection from raw material screening to grinding, improving the overall production efficiency.

[0026] An electric motor 1021 is arranged outside the feeding box 101. The output end of the electric motor 1021 is connected with a first pulley 1022. A second pulley 1023 is arranged obliquely below the first pulley 1022. A first transmission belt 1024 is tensioned on the first pulley 1022 and the second pulley 1023. Transmission rollers 1025 are connected to both the first pulley 1022 and the second pulley 1023. The partition conveyor belt 102 is tensioned on the two transmission rollers 1025. A feeding port 103 is opened on one side of the feeding mechanism 1, and the feeding port 103 is located directly above the feeding end of the partition conveyor belt 102.

[0027] In this embodiment, the motor 1021 drives the partition conveyor belt 102 through the first pulley 1022, the first transmission belt 1024 and the second pulley 1023 to achieve continuous and stable conveying of materials. The design that the feeding port 103 is located directly above the loading end of the partition conveyor belt 102 ensures that the materials directly fall into the starting position of the partition conveyor belt 102 from the feeding port 103, reducing spillage and waste.

[0028] A disassembly and assembly mechanism 4 is arranged between the sieve box 202 and the sieve mesh 203. The disassembly and assembly mechanism 4 includes a slider 401. The slider 401 is installed on the side walls at both ends of the sieve mesh 203. A chute 402 matching with the slider 401 is arranged at the contact position between the inner wall of the sieve box 202 and the slider 401. Handles 403 are arranged at both ends above the sieve mesh 203.

[0029] In this embodiment, through the cooperative design of the slider 401 and the chute 402, the sieve mesh 203 can be quickly disassembled or installed from the sieve box 202. When the sieve mesh 203 is worn or a sieve mesh 203 with a different aperture needs to be replaced, the operator only needs to hold the handle 403 and slide the sieve mesh 203 out or into the chute 402 to complete the replacement, without complex tools or long-term shutdown.

[0030] The grinding mechanism 5 further includes a driving motor 501. The output end of the driving motor 501 is connected with a third pulley 503. A fourth pulley 504 is arranged above the third pulley 503. A fourth transmission belt 505 is tensioned between the third pulley 503 and the fourth pulley 504. One side of the fourth transmission belt 505 is connected with a first spur gear 506. A second spur gear 507 is meshed and connected to one side of the first spur gear 506. The output ends of the first spur gear 506 and the second spur gear 507 are respectively connected with grinding wheels 508. Scraping plates 509 are arranged on the inner walls on both sides of the grinding box 502. A discharge hopper 5010 is arranged at the bottom of the grinding box 502, and a switching valve is arranged inside the discharge hopper 5010.

[0031] In this embodiment, the driving motor 501 drives the first spur gear 506 to rotate through the third pulley 503, the fourth transmission belt 505 and the fourth pulley 504. Then, through the meshing transmission of the second spur gear 507, the two grinding wheels 508 rotate relatively to achieve efficient grinding. The meshing transmission of the first spur gear 506 and the second spur gear 507 ensures the synchronous rotation of the two grinding wheels 508 and a stable speed ratio, ensuring the uniformity and consistency of grinding. The arrangement of the scraping plates 509 effectively scrapes off the materials adhered to the surface of the grinding wheels 508, preventing the materials from accumulating on the grinding wheels 508 and affecting the grinding effect. The arrangement of the discharge hopper 5010 is convenient for collecting and discharging the ground rice powder.

[0032] The working principle of the present invention: Refer to the attached drawings of the specification Figures 1-8, when using the present invention, first, the operator pours the rice raw materials to be screened into the sieve mesh 203, and then starts the servo motor 204 of the screening mechanism 2. The servo motor 204 starts to rotate and drives the small pulley 205 to rotate. The small pulley 205 transmits the power to the large pulley 206 through the second transmission belt 207, causing the large pulley 206 to start rotating. The rotation of the large pulley 206 is transmitted to the connecting member 303 at one end of the sieve box 202 through the rotating shaft 301 and the connecting rod 302, causing the sieve box 202 to swing reciprocally under the support of the rollers 209. The raw materials are dispersed in the sieve box 202 with the reciprocal swing of the sieve box 202 and are classified and screened through the sieve mesh 203. The rice raw materials fall into the feeding hopper 208 after being screened by the sieve mesh 203, while the larger particles and the doped impurities remain on the sieve mesh 203. The pure rice raw materials falling into the feeding hopper 208 fall into the feeding port 103 of the feeding mechanism 1, and the raw materials directly fall onto the feeding end of the partition conveyor belt 102; During the screening process, the partition conveyor belt 102 keeps running and conveys the screened raw materials into the grinding box 502 of the grinding mechanism 5 for preparation of grinding. At this time, the operator starts the driving motor 501 of the grinding mechanism 5. The driving motor 501 starts to rotate and drives the pulley three 503 to rotate. The pulley three 503 transmits the power to the pulley four 504 through the fourth transmission belt 505, causing the pulley four 504 to start rotating. The rotation of the pulley four 504 drives the spur gear one 506 to rotate through the transmission shaft. The spur gear one 506 meshes with the spur gear two 507 to drive, causing the two grinding wheels 508 to rotate relatively. The relative rotation of the two grinding wheels 508 efficiently grinds the rice raw materials falling into the grinding box 502 into rice protein powder. During the grinding process, the shaving plates 509 on both inner walls of the grinding box 502 effectively scrape the materials adhered to the surface of the grinding wheels 508 to prevent the materials from accumulating on the grinding wheels 508. The ground rice protein powder falls into the discharge hopper 5010 at the bottom of the grinding box 502, and the operator can control the discharge timing and flow rate of the powder through the control switch valve.

[0033] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rice milling machine for manufacturing rice protein powder, comprising a feeding mechanism (1), characterized in that: The feeding mechanism (1) includes a feeding box (101), and a partition conveyor belt (102) is inclinedly arranged inside the feeding box (101). A screening mechanism (2) is arranged above the feeding mechanism (1). The screening mechanism (2) includes a vertical frame (201). A screening box (202) is arranged on one side of the top of the vertical frame (201). A screen mesh (203) is arranged inside the screening box (202). One end of the bottom of the vertical frame (201) is provided with a servo motor (204). The output end of the servo motor (204) is connected with a small pulley (205). A large pulley (206) is arranged above the small pulley (205). A second transmission belt (207) is tensioned on the small pulley (205) and the large pulley (206). A feeding hopper (208) is inclinedly arranged directly below the screen mesh (203). The bottom of the screening box (202) is in sliding contact with a roller (209) and is installed on the top surface of the vertical frame (201). A link mechanism (3) is arranged between the screening box (202) and the large pulley (206). The link mechanism (3) includes a rotating shaft (301). The rotating shaft (301) is connected with the large pulley (206). A connecting member (303) is arranged on one side wall of one end of the screening box (202). A connecting rod (302) is hinged between the connecting member (303) and the rotating shaft (301). The discharging end of the partition conveyor belt (102) is provided with a grinding mechanism (5). The grinding mechanism (5) includes a grinding box (502). A grinding wheel (508) is rotatably installed inside the grinding box (502).

2. The rice milling machine for manufacturing rice protein powder according to claim 1, characterized in that: A motor (1021) is arranged outside the feeding box (101). The output end of the motor (1021) is connected with a first pulley (1022). A second pulley (1023) is arranged obliquely below the first pulley (1022). A first transmission belt (1024) is tensioned on the first pulley (1022) and the second pulley (1023).

3. A rice milling machine for manufacturing rice protein powder according to claim 2, characterized in that: Both the first pulley (1022) and the second pulley (1023) are connected with a transmission roller (1025). The partition conveyor belt (102) is tensioned on the two transmission rollers (1025).

4. A rice milling machine for manufacturing rice protein powder according to claim 1, characterized in that: A feeding port (103) is formed on one side of the feeding mechanism (1), and the feeding port (103) is directly above the feeding end of the partition conveyor belt (102).

5. A rice milling machine for manufacturing rice protein powder according to claim 1, characterized in that: A disassembly and assembly mechanism (4) is arranged between the screening box (202) and the screen mesh (203). The disassembly and assembly mechanism (4) includes a slider (401). The slider (401) is installed on the side walls at both ends of the screen mesh (203). A sliding groove (402) matching the slider (401) is formed at the contact position between the inner wall of the screening box (202) and the slider (401).

6. A rice milling machine for manufacturing rice protein powder according to claim 5, characterized in that: Handles (403) are arranged at both ends above the screen mesh (203).

7. A rice milling machine for manufacturing rice protein powder according to claim 1, characterized in that: The grinding mechanism (5) further includes a driving motor (501). The output end of the driving motor (501) is connected with a third pulley (503). Above the third pulley (503), a fourth pulley (504) is arranged. A fourth transmission belt (505) is tensioned between the third pulley (503) and the fourth pulley (504).

8. A rice milling machine for manufacturing rice protein powder according to claim 7, characterized in that: One side of the fourth transmission belt (505) is connected with a first spur gear (506). One side of the first spur gear (506) is meshed and connected with a second spur gear (507). The output ends of the first spur gear (506) and the second spur gear (507) are respectively connected with grinding wheels (508).

9. A rice milling machine for manufacturing rice protein powder according to claim 7, characterized in that: Shaving plates (509) are arranged on the inner walls on both sides of the grinding box (502). A discharge hopper (5010) is arranged at the bottom of the grinding box (502), and a switching valve is arranged inside the discharge hopper (5010).

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